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4
votes
3answers
278 views

To what extent (if at all) is the new Komodo 13 MCTS an AlphaZero Lite?

The new Komodo 13 MCTS has been announced with the claim that: Komodo 13 MCTS thinks like no other chess engine in the world. Inspired by the ideas of AlphaZero and Leela, Larry and Mark set out ...
4
votes
1answer
101 views

Winning plan for black in this line of French Defense: Advance Variation Main Line

I play the French Defense as both white and black. I often play this line with black suggested by Korchnoi if I am not wrong. I have found a way to prevent the sudden b4, via Bd7 (if 8.Rb1 Bd7 9.b4 ...
0
votes
1answer
84 views

How would I train like Bobby Fischer did? [closed]

As the title suggests, I want to know how to train like Bobby Fischer did, along with what books he read during his chess training. Remember, keyword is TRAIN. I don’t want to be like him, as that is ...
4
votes
3answers
162 views

Why is 5. f5 so necessary in the Dzindzi-Indian Opening/Modern Defense: Pterodactyl, Beefeater Variation?

I have played a couple of games as black with this line. It is a simple plan: to put presure on the weak c3 and c4 pawns. This line is mainly known as the Dzindzi-Indian Opening, according to the ...
3
votes
3answers
126 views

In Caro-Kann Defense, what are the differences between 3. Nc3 and 3. Nd2?

After 1. e4 c6 2. d4 d5, what are the differences between 3. Nc3 and 3. Nd2? It seems 3. Nc3 is more popular, though after 3. ... dxe4, I failed to see the difference.
9
votes
1answer
133 views

How much worse do GMs play in their blitz and bullet games?

How much of a skill drop is there when a GM plays a blitz game or a bullet game versus rapid and classical? What I mean is, imagine if Carlsen was given 1 minute to play in, and he played against ...
2
votes
1answer
259 views

What is a pure checkmate?

Recently I heard something about pure checkmate. This is a special kind of checkmate where each of the squares around the king has to be covered by just one single piece. One simple example of this ...
1
vote
3answers
141 views

Is this KBPP vs. KR position a draw or a win with perfect play?

I played a game on Lichess today as white, and me and my opponent reached this interesting endgame position. Note: It is black’s turn currently. The board is shown from White's point of view. [Title ...
7
votes
1answer
544 views

Why is the Advance Variation considered strong vs the Caro-Kann but not vs the Scandinavian?

As title above, why is the Advance Variation in these recent years considered strong vs the Caro-Kann, especially owing to White's early space advantage in the center, but not vs the Scandinavian? In ...
1
vote
4answers
166 views

Why aren't 1.e4 g6 2.d4 Bh6, and 1.e4 b6 2.d4 Ba6 considered by theory?

As the title above, why aren't 1.e4 g6 2.d4 Bh6, and 1.e4 b6 2.d4 Ba6 (or eventually beginning with 1.d4) for Black not even considered by theory? Isn't the eventual early trade-off of White's strong ...
6
votes
2answers
103 views

How to evaluate and comment moves in PGN format?

I want, with Python-chess, to evaluate any movement of some game and generate the PGN with analysis, as Chess.com does in its analysis. For example, i played one game with fools mate and they ...
-4
votes
2answers
72 views

Do some people play chess with a 5 minute base time and no increments because it's a different challenge than 3 minutes with 2 second increments? [closed]

Chess with a 5 minute base time and no increments is a very different game from chess with a 3 minute base time and 2 second increments. It probably always had a winner and a loser except for when ...
-2
votes
1answer
84 views

Why is the time control for FIDE chess tournaments what it is?

Now that from this answer, I know what the time control is, why is it 90 minute base time for the first 40 moves, an additional 30 minute base time for the rest of the game plus a 30 second increment ...
12
votes
3answers
4k views

A case where Bishop for knight isn't a good trade

I have played recently a game. In the position below Stockfish is saying that Nxe6 is a mistake and Rad1 is suggested but I'm having a hard time figuring out why. Can someone provide some insights ? ...
-2
votes
2answers
129 views

Could playing in chess tournaments make you really good at chess?

This is essentially the same as my question https://psychology.stackexchange.com/questions/23207/could-being-given-unlimited-tries-to-correctly-answer-an-open-ended-question-be except that it's ...
0
votes
1answer
125 views

In the game Kudrin-Douven, why did black allow white to capture en passant two times in a row?

I read about this game on Tim Krabbe’s website and found it on chessgames.com. I am severely confused by black’s 30th and 31st moves (see the diagram below.) [Title "Sergey Gennadyevich Kudrin-Rudy ...
9
votes
2answers
3k views

Is the English opening the most suitable for beginners?

Here are my understandings of the English opening: The English opening is as good as 1.d4. Since it is less common than 1.e4 and 1.d4; it is more likely that an average amateur player is less ...
0
votes
1answer
53 views

Is it possible to manually alter initial values in a chess engine?

I am curious of the games that would arise if I changed the initial value of a knight to -1 or make standing on e5 worth -10 points. How would I go about to create such an engine? Is it possible ...
3
votes
1answer
49 views

Why is 7…Ne4 8.Bd2 such a popular line in this variation of the Queen's Indian Defence?

This is the opening I'm referring to: [fen ""] 1.d4 Nf6 2.Nf3 e6 3.g3 b6 4.Bg2 Bb7 5.O-O Be7 6.c4 O-O 7.Nc3 Ne4 8.Bd2!? The other white book moves at this point seem sensible 8.Qc2 or 8.Qd3, or even ...
3
votes
3answers
696 views

Why was castling bad for white in this game, and engine strongly prefered trading queens?

I'm a novice player, trying to improve. In the following game I played as white recently on chess.com, I analysed afterwards and my worst move of the game was apparently when I castled. The engine ...
2
votes
2answers
121 views

If we move white's bishop to a dark square in the Fisher-Taimanov (1971) bishop vs. knight endgame, can white still win?

My coach showed me a famous game Fisher vs. Taimanov (1971) where Fisher expertly used the bishop's advantage over a knight in an endgame. [fen ""] [White "Robert James Fischer"] [Black "Mark ...
2
votes
1answer
73 views

Looping through the same lines while solving puzzles

When solving tactics sometimes I spend a lot of time (20-30 minutes) looking at the same line over and over again. Sometimes I have a feeling that one particular line is the right one but my vision ...
0
votes
1answer
76 views

How much of the Principal Variation can I trust? [closed]

Chess engines will have a Principal Variation (PV) that may be as many as 30 (or more) ply deep. Of course, the PV and the other facets of the engine help to determine the best move at the root ...
4
votes
2answers
440 views

How to beat King's Fianchetto Opening Modified (White)

I have a few friends who I play with. As of recent they have picked up on one of our better players openings and its surprisingly effective for development of white pieces and positioning. I can't ...
8
votes
3answers
3k views

Why not take the bishop with the knight (Guseinov vs. Bauer )?

In this game between Guseinov (2622) vs. Bauer (2634): Crete 2007 · French, Winawer, Alekhine (Maroczy) gambit (C15) · ½-½ [FEN ""] 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 Nc6 ...
3
votes
5answers
355 views

Can one improve his chess without playing online?

I have been playing chess for almost an year and I'm addicted to playing chess on Lichess. My stats there are: 2100 classical 2000 rapid 1800 blitz I feel that playing chess online ruins my life and ...
13
votes
2answers
606 views

Can an Irwin Cheat Detector catch a user who is using a Leela chess bot for cheating?

I’m a big fan of chess cheat detection apps, like Irwin that was created by lichess.org. But I heard that there is a new bot called Leela that is teaching herself how to play chess, and to think in a ...
2
votes
0answers
52 views

Probability of winning based on Elo rating [duplicate]

I already looked on several websites but I have not been able to get a clear and thorough answer to this question: If player A has FIDE rating x and player B has FIDE rating y, how many times, on ...
3
votes
2answers
165 views

I play better on the board than online. How can I play better online?

I live in a small town. I only play a couple of tournaments a year and about two rapid games a week with my teamates. Therefore, playing online should be my primary source of practice, but I find it ...
23
votes
2answers
2k views

Why always 4…dxc6 and not 4…bxc6 in the Ruy Lopez Exchange?

[FEN "r1bqkbnr/1ppp1ppp/p1B5/4p3/4P3/5N2/PPPP1PPP/RNBQK2R b - - 0 1"] In the Ruy Lopez Exchange, black always takes back the bishop with 4...dxc6. In Timothy Taylor's 2011 book Slay the Spanish, he ...
2
votes
2answers
93 views

Is it possible for an engine to be stronger at short time controls, and weaker at long time controls?

Is it possible for engine A to be decisively better than engine B at short time controls (say, 5 min/game) but decisively weaker at long time controls (say, 1 hour/game)? If the answer is yes, what ...
1
vote
1answer
145 views

Looking for a real game ending by … Nf6! leading to a perpetual check by White

My colleague Prof. Dr. S. writes a fictional story with symbolic elements involved. One of them is a simultaneous game played by a grandmaster with a gifted schoolboy. Prof. S. wants to represent it ...
3
votes
3answers
447 views

Why does Lichess only tell me my “inaccuracies”, “mistakes”, and “blunders”, and not e.g. my “brilliancies”?

A computer analysis of a game in Lichess lists your "inaccuracies", "mistakes", and "blunders". An example is below: What I don't understand is why Lichess doesn't point out my good moves. It seems ...
6
votes
3answers
642 views

As black, how should one respond to 4. Qe2 by white in the Russian Game, Damiano Variation?

I recently played a game on as black. My opponent and I transposed into, according to Lichess, the Russian Game, Damiano Variation, when white played Qe2 on move 4. I wasn’t sure how to reply, and I ...
30
votes
4answers
4k views

Endgame puzzle: How to avoid stalemate and win?

I'm stuck on this problem a friend shared with me recently, with barely any pieces left and apparently white is able to force a win but I've been hitting a wall with everything I've tried so far, as ...
4
votes
2answers
245 views

Of all the possible legal chess games, how many end in white win, draw and black win (assuming 50 move rule)?

If both sides make moves completely randomly but legally, how many different games are there? Since 50 move rule applies, this number should be finite (but HUGE). For example, there are 20 possible ...
0
votes
1answer
202 views

Where is there a mate in four (pawn moves)?

From Fine's BCE: I can only see the pawn getting to a2 after 1.d6+ Kd8 2.e6 a4 3.Kf6 a3 4.e7+ Ke8 5.Ke6 a2 6.d7#. That's three pawn moves, not four. What is the more resistant defence I missed?
2
votes
2answers
106 views

Threatening the Queen in the bishop with Bg5

I have long been playing games in which I can develop my bishop to g5 like in the following positions: The truth is I have trouble deciding if such moves are useful. In the diagrams, what pushed me ...
-2
votes
1answer
127 views

Why did the (Black) computer play 9. … Ke7 here?

Not having played chess in ~5 years, I started playing against the computer on my phone at ELO~800 (I've since reached ~900). I do not know what engine the app uses (Chess for iPhone by Mastersoft Ltd)...
1
vote
2answers
54 views

Using the tree window in SCID on a subset of games in the database

With a database open in SCID, one can use the tree window to explore openings. Among other things, it shows the frequency of each move that has been played in the current position and how well that ...
12
votes
2answers
1k views

How does engine strength scale with hardware?

Say I run Komodo on my 4-core machine. How much stronger would Komodo be if I used an 8-core machine? A 40-core machine? A 4000-core machine? Is there a general relation for this? Also, does this ...
9
votes
4answers
3k views

If 1. e4 c6 is considered as a sound defense for black, why is 1. c3 so rare?

At 365chess.com, 1.c3 is ranked as the 14th most common first move for white. If the Caro-Kann defense is considered as a sound defense, why is the Saragossa opening so rare for white? After all, ...
-4
votes
1answer
131 views

Has there ever been at least a single instance of promotion with double check in a professional game?

Promotion is an uncommon move in professional games. What many may not know is that it is possible to preform a double check while doing so. Here is a small example. [FEN "2kr4/2P5/1KR5/8/8/8/8/8 w k ...
6
votes
2answers
874 views

Pawn Sacrifice Justification

A few weeks ago, Magnus Carlsen (White) played against Anish Giri (Black), and this position was reached on the board on move 17 after black had played exf4: Here is the full game: [White "Magnus ...
0
votes
0answers
24 views

Suggestions to improve and learn better chess [duplicate]

I am an average player of chess with chess rating of 1750 max and average around 1600. in Blitz on chess.com. I haven't read/learned about any specific openings. I just do play-lose-learn strategy. I ...
0
votes
2answers
199 views

Does the MacBook chess game program not allow castling?

I have gotten back to learning chess, and I started using the chess game program on my 2015 MacBook Pro. Last night I wanted to castle, but it would not allow me to do so. I was white by the way. ...
4
votes
3answers
212 views

Is there a low-end ELO Deflation?

I've heard often about Elo Inflation among the top chess players, meaning that a player rated 2650 Elo nowadays is weaker compared to a player rated 2650 Elo player 10 years ago. I'm curious if there'...
4
votes
1answer
84 views

Color-coding moves and games

If you are familiar with watching chess broadcasts on ChessBomb, you'll know they have an engine running on the server which evaluates moves, and colors each move according to whether (according to SF)...
1
vote
1answer
156 views

Why does NCM show no progress for Stockfish when each new version has to beat the previous version?

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds. As of time of writing, one ...
-1
votes
2answers
157 views

Is there a good opening that revolves around a “crab” pawn structure? [closed]

I have often (or this one video just got it stuck in my head) heard Youtube videos (time 2:37, nothing else relevant) refer to this kind of pawn structure as a “crab” pawn structure (below, white ...

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